Base | Representation |
---|---|
bin | 100101111101110110001 |
3 | 2100012120002 |
4 | 10233232301 |
5 | 304302311 |
6 | 42355345 |
7 | 13401026 |
oct | 4575661 |
9 | 2305502 |
10 | 1244081 |
11 | 77a773 |
12 | 4bbb55 |
13 | 347357 |
14 | 24554d |
15 | 19893b |
hex | 12fbb1 |
1244081 has 4 divisors (see below), whose sum is σ = 1247232. Its totient is φ = 1240932.
The previous prime is 1244059. The next prime is 1244083. The reversal of 1244081 is 1804421.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1244081 is a prime.
It is a super-2 number, since 2×12440812 = 3095475069122, which contains 22 as substring.
It is a Duffinian number.
1244081 is a Rhonda number in base 8.
It is not an unprimeable number, because it can be changed into a prime (1244083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881 + ... + 1806.
It is an arithmetic number, because the mean of its divisors is an integer number (311808).
21244081 is an apocalyptic number.
It is an amenable number.
1244081 is a deficient number, since it is larger than the sum of its proper divisors (3151).
1244081 is an equidigital number, since it uses as much as digits as its factorization.
1244081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3150.
The product of its (nonzero) digits is 256, while the sum is 20.
The square root of 1244081 is about 1115.3837904506. The cubic root of 1244081 is about 107.5514374354.
It can be divided in two parts, 12440 and 81, that added together give a palindrome (12521).
The spelling of 1244081 in words is "one million, two hundred forty-four thousand, eighty-one".
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